{"id":5408,"date":"2022-07-02T08:01:55","date_gmt":"2022-07-02T08:01:55","guid":{"rendered":"https:\/\/mdr.foobrdigital.com\/?p=5408"},"modified":"2022-07-02T08:01:55","modified_gmt":"2022-07-02T08:01:55","slug":"endothermic-and-exothermic-reaction","status":"publish","type":"post","link":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/2022\/07\/02\/endothermic-and-exothermic-reaction\/","title":{"rendered":"Endothermic and exothermic reaction"},"content":{"rendered":"\n

Exothermic reaction \u2013<\/strong> heat is evolved during a reaction. Most of the combination reactions are exothermic.<\/p>\n\n\n\n

Al + Fe2<\/sub>O3 <\/sub>\u2192 Al2<\/sub>O3 <\/sub>+ Fe + heat
CH4 <\/sub>+ 2O2 <\/sub>\u2192 CO2 <\/sub>+ 2H2<\/sub>O + heat<\/p>\n\n\n\n

<\/p>\n\n\n\n

Effect of oxidation reaction in everyday life<\/h3>\n\n\n\n

Endothermic \u2013<\/strong> Heat is required to carry out the reaction.<\/p>\n\n\n\n

6CO2 <\/sub>+ 6H2<\/sub>O + Sunlight \u2192 C6<\/sub>H12<\/sub>O6 <\/sub>+ 6O2<\/sub><\/p>\n\n\n\n

Glucose
Most of the decomposition reactions are endothermic.<\/p>\n\n\n\n

<\/p>\n\n\n\n

Corrosion<\/h3>\n\n\n\n

Gradual deterioration of a material, usually a metal, by the action of moisture, air or chemicals in the surrounding environment.<\/p>\n\n\n\n

Rusting:<\/p>\n\n\n\n

4Fe(s) + 3O2<\/sub>(from air) + x<\/em>H2<\/sub>O(moisture) \u2192 2Fe2<\/sub>O3<\/sub>.x<\/em>H2<\/sub>O(rust)
Corrosion of copper:
Cu(s) + H2<\/sub>O(moisture) + CO2<\/sub>(from air) \u2192 CuCO3<\/sub>.Cu(OH)2<\/sub>(green)
Corrosion of silver:
Ag(s) + H2<\/sub>S (from air) \u2192 Ag2<\/sub>S(black) + H2<\/sub>(g)<\/p>\n\n\n\n

<\/p>\n\n\n\n

Rancidity<\/h3>\n\n\n\n

It refers to the oxidation of fats and oils in food that is kept for a long time. It gives foul smell and bad taste to food. Rancid food causes stomach infection on consumption.
Prevention:
(i) Use of air-tight containers
(ii) Packaging with nitrogen
(iii) Refrigeration
(iv) Addition of antioxidants or preservatives<\/p>\n","protected":false},"excerpt":{"rendered":"

Exothermic reaction \u2013 heat is evolved during a reaction. Most of the combination reactions are exothermic. Al + Fe2O3 \u2192 Al2O3 + Fe + heatCH4 + 2O2 \u2192 CO2 + 2H2O + heat Effect of oxidation reaction in everyday life Endothermic \u2013 Heat is required to carry out the reaction. 6CO2 + 6H2O + Sunlight \u2192 C6H12O6 + 6O2 GlucoseMost of the decomposition reactions are […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[628],"tags":[],"_links":{"self":[{"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/posts\/5408"}],"collection":[{"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/comments?post=5408"}],"version-history":[{"count":0,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/posts\/5408\/revisions"}],"wp:attachment":[{"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/media?parent=5408"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/categories?post=5408"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/tags?post=5408"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}